Ments



F. IVI. FURBER.

BILAGKING MACHINE. APPLICATION FILED Nov. 29. |915.

Patented July 29, 12H9.

MN5/v TUR M//Z 7 www - UNITED STATES A CORPORATION OF NEW JERSEY.

A FREDERICK M. FURIBER, QF REVERE, MASSACHUSETTS, ASSIG-NOR, BY'MESN EASSIGN- MENTS, T0 UNITED SHOE MACHINERY CORPORATION,

OF PATERSON, NEW JERSEY,

IBLACKIN G-MACHIN E.

Speeication of Letters Patent.

Patented July, 29, 1919.

Application levd November 29, 1915. Serial No. 64,025.

' tion like reference characters on the drawi ings. indicating Alikeparts in the several.

figures.

This invention relates to bleacking machines, and particularly tomachines such as are used for applying blacking-to parts of shoes in theprocess of shoe manufacture. A particular object of the invention is toprovide a machine suitable for use in applying blacking to the margin ofa shoe sole before the sole is incorporated in the shoe; but it 2()vwill be apparent from a consideration of the construction hereinafterdescribed that the invention is not thus restricted in its applicationandthat a machine emfbodying the novel features of the invention issusceptible'.

of'a variety of uses.

In the manufacture of some types of shoes such, for'example, as McKayshoes, in which the margin of the upper surface of the sole properisexposed in the finished shoe, it is' the practice to apply bl'acking tothis por-- tion of the sole before the sole is incorpo? -rated in theshoe. This operation is performed usually by the use of a brush which isfirst dipped in the blacking and then applied to the'sole, the operatorholding the brush in one hand and the sole in the other. It will bereadily understood that, as thus carried outthe operation is slow andtheresults also are far from uniform, since the width'of the mar 'n uponwhich the 'blacking is applied is likely to vary and a larger quantityof 'bladking is likely to be applied by hand, and thus improve thequality of the 1n such further feature of spray. soles, in order to'work and increase the amount of work that an operator may perform inagiven time. I have found that the'blacking may 'be applied eectually anduniformly to the work if dee livered in the form of spray; and means for'effecting such delivery of the bl'acking to- 55 gether with means fordetermining the positionV of the work to cause the Iblacking to fbeapplied eifectually to that portionof the Work whichi't is desiredto-black, present important featlre's of the invention. n 60` A furtherfeature of 'the invention consists 1n al novel construction andarrangement of means for effecting a delivery of blacking manner as topermit 'aportion of the blacking to be applied to` the work and 65 meansfor recovering 'the unutilized portion of the blacking. The constructionherein shown. comprises' a iblacking receptacle and means for .drawingb'lacking from the rec eptacle anddelivering it in the form of spray insuch manner that the unutilized portion of the bllacking in the spray isreturned to the receptacle. In this construcf tion the`blaokingreceptacle is partially openatthe top' and the spray is directed toward75 the opening. I have found that the surplus spray is received withinthe receptacle much more read-ily and e'ectually, `without thelilabili'ty ht V; POI from the spray may be dispersed in the surroundingair before it reaches the opening, if the machine is provided wi-thmeans for facilitating theinward `flow of air and spray at the opening,and the provision of such means constitutes a the invention.

, Stillanother feature of the invention resides in -a novel-construction `and arrangement of means for spraying the -blacking andfor varying the consistency of the spray to'meet the requirements ofvarying condi- 90 Y tions of use. This means may advantageouslybecomb-ined with means for adjustaf bly positioning the work to correspondwith the variations in the consistency of the The abovea and otherfeaturesof the invention, including certain details of construc- -tionand combinations of parts, willnow be described with reference to theaccompanying drawings and pointed out in `the claims.

In :the drawings,

Figure 1 is a view in side elevation, with portions shown insection, ofa machine in which the invention is embodied,

Fig. 2 is a section on the line 2--2 of Fig. 1,

Fig. 3 is lan enlarged sectional view showing in greater detail aportion of the mechanism shown in Fig. 1, and

Fig. 4 shows in front elevation a portion of the mechanism illustrated"in Fig. 3.

-Mounted upon a standard 2 is a casting 4 which is form-,ed to provide areservoir 6 for compressed air and has means for supporting Iareceptacle 8 for blacking, this means comprislng a lug 10 on the castingfrom which project forwardly a pair of pins 12, only one of which isseen in the drawings. The receptacle 8 has a depending lug 14 suitablybored to receive the pins 12 and permit the receptacle to sli-de on' thepins into the positlon shown in the drawings.' The receptaole 8 isformed on its rear side to provide an outlet conduit 16, the purpose ofwhich will be subsequently explained, and

this conduit fits within the flanged end of a conduit 18 secured to theside of :the air reservoir 6, the conduit `18 thus affording additionalsupport for the blacking receptacle. A thumb screw 20 threaded in theconduit 16 and engaging the conduit 18 serves *to clampthe conduit 16 inposition Within the condult 18 and thus to prevent the receptacle 8 fromslipping vforwardly on thepins."1 2.A

Air 1s forced into the reservoir 6 by means of a pump comprising acylinder 22 bolted to the side of the reservolr and communica tingtherewith, as shown by dotted lines in Flg. 1, and a plston 24 Withinthe cylinder driven by lmeans of a pitman'26 from a cranli onv a shaft28 which is supported in bearings on a bracket 30 projecting upwardlyfrom the, reservoir casting 6. The speclic details of construction ofthe pump are not shown herein since they form no part of the presentinvention. The shaft 1s arranged to be driven from a suitable -source ofpower through a pulley 32 which is secured thereon. A loose pulley 34also 1s mounted on the shaft, and the starting and stopplng of the umare to be controlled by means of a be t shlfter 36 which may be of.thesame form as that disclosed in my por patent No. 1,136,116, .grantedApril 30,

The reservoi-r 6 is provided with an outlet reservoir is a conduit 40 1nwhlch isa passage 42 that communicates with the outlet 38. This passageleads to 4a lateral 4outlet 44 formed in a cylmdrical j boss 46, uponwhich is mounted to turn ina member is provided centrally passage`blacking is to vertical plane a conduit 48 having a passage 50 thatcommunicates through an opening 52 with the outlet 44. A leather washer54 A 48 is permitted to turn about the bearing 46 will be subsequentlyexplained.

The air conduit 48 supports at its outer end a blacking supply conduitcomprising a pipe 60 arranged to extend vertically downward into theblacking in the receptacle 8 and having a vertical passage 62 whichcommunicates with a horizontal passage 64 in a head 66 on the pipe.Opening downwardly from the bottom of the passage 64 is an outlet 68.Extending upward from the head 66 in laterally'oii'set relation to thepipe 60 is a cylindrical projection 69 which'fits within a verticaltranvserse opening in the conduit 48, so that the position of the 'pipe60 may be varied by turning the member 69, and this with a vertical bore70 in line with the outlet 68 and communicating through an opening 72with the passage 50 in the conduit 48. The conduit 48 is formed toprovide an annular passage 74 extending around the member 69 so that theopening 50 1n all positions of adjustment of the member 69. This memberis retained in adjusted position by means of a nut 76 threaded upon itsupper end, suitable wash ers 78 and 80 being provided between theconduit 48. and the head 66 and the nut 7 6 respectively so as toprevent escape of air at the joints. t.

Within the bore 70 is threaded a nozzle member 82 having passagessuitably formed to receive air from the opening 72 and direct the air ina fine stream through a nozzle 84 which is arranged to proj ect partlyacross the passage 64 in line with the center of the blacking to bedrawn up from the receptacle through the passages 62 and 64, atomized atthe outlet 68, and delivered downwardly in the form of spray. The workto which be applied, as illustrated by the sole 61 shown in'Fig. 1, ispresented below theoutlet 68 in the 'path of the spray, and the pipe-60, which is substantially parallel to the line of delivery of thespray, is arranged, in the construction shown, to serve as means'todetermine the position of the work. Such means is of particular utilityin case it is desired to apply blacking to a portion only of the work`as in blacling the margin of a sole.- For this purpose the sole will bepositioned in a horizontal plane with its edge in contact with the pipeG0 and will be moved to draw the margin through the spray.` ln orderthat the width of the blacked margin may be uniform, the sole should bemoved with its edge continuously in engagementV with the pipe. atsubstantially the same point. F or the best results the sole shouldengage the pipe at a point directly opposite to the line of delivery ofthe spray so that the outlet 68 may be directly over that portion of thework which is to `be blacked.

shown asv positioned in a vertical plane extending directly rearwardfrom the front of th'cfmachine through :the outlet 68, and the solewouldbe lmoved across the front of the pipe from right to left or from leftto right at the convenience of the operator. It frctpiently happens,however, that the machine is so positioned with reference to the sourceof light, or the position of the rack from which the soles are taken issuch, that it is more convenient to move the soles through the path ofthe spray diagonally with reference to the plane above mentioned. Forthis purpose the pipe 60 should be positioned somewhat at one side orthe other of said plane so as to present the guiding surface for theedge of the sole in a. different direction from the axis yof the outlet68 and not directly at the rear of said axis. The pipe G0 may be thusadjusted to suit the convenience of the operator by turning the oft'-vset member G9 within its bearing in the outer end of the air conduit 48,as hereinbefore explained; 1

In ordel` that the machine may operate in an effective manner, itisimportant thatfthe work be presented 'at the proper dist-ance fromtheoutlet v68. The velocity of -the air jet is ofcourse, greater nearthe outlet than itis at a distance from the outlet and decreases as 'the`distance from the outlet increases. If the work is presented too nearthe outlet where the velocity is high, it will cause the spray to bedeflected laterally to such an extent-that some of therv Vapor will bedispersed in the surrounding air and all of the surplus blacking willnot be returned as it should to the receptacle. Another condition to beconsidered is that near the outlet the blacking is more `finely atomizedthan it is at` a distance from the outlet, Whereit l tends to condenseand form particlesof larger size. In operating upon a comparativelysmoothsurfaceV such as is presented by the grain side of leather theparticles of blacking, if too large, will tend to spatter and thus ytostain a portionfofgthe Work ln the drawings the pipe GO isV the bestresults.

,of the. surrounding atmosphere.

. the member screw 88 to the front of the head 6G, and in operation thesole will be presented with its upper surface in engagement with thelower end of the gage while itsedge engages the pipe 60. The gage isprovided moreover with a slot 9() which permits it to be adjustedvertically relatively to the screw 88 to meet different conditions as tothe character of the surface to be blacked orA the velocity of thecurrent. By experienced operators the gage 86, as far as its function ofdetermining the distance from the outlet at which the sole should bepositioned is concerned, may conceivably lbe dispensed with, but even inthe case of such operators the use of the gage will be found preferablefor The sole engaging surface of the gage is indicated at 86h, Fig. 3. y

The gage 86, in the construction shown, con'iprises a plate whichextends laterally as shown in Fig. 4, and as thus constructed the gage,through its surface 86, has the additional function of protecting fromcontact with the spray portions of the work which it is not desired toblack. The Width of the inargin to which blacking is applied will thussubstantially equal the distance between the gage and the pipe 60, andthe shape of the gage may bevariously modied to vary the width of thismargin.` Since the gage is secured to the front of the head 66, it willsustain a fixed relation to the pipe 60 for allpositions of adjustmentof the pipe, andy with reference to the size of the particles ofblacking in the spray, the construction hereinbefore described providesmeans for varying the consistency of the spray. The size ofthe particlesin the spray, other `conditions being equal, Will Vary in accordanceWith'the thickness of .the blacking, and this will depend somewhatuponthe temperature Means for the consistency of the spray istheprovision for adjustment of 82, whereby the member may be turnedtoposition the end of the nozzle .controlling afforded by Y the parts inupraised from the normally 84 at different distances from the outlet 68.If a finer spray is desired, the member 82 should be turned to positionthe nozzle nearer to the outlet, and if the nozzle is moved in theopposite direction the result will be to increase the size of theparticles of blacking in the spray. By adjusting the nozzle the machinemay be quickly adapted to small variations in operating conditionswithout the necessity of' changing the position of thc guide 86.

Securedto the lower end of the pipe is a' strainer 92 provided with alarge number of small openings in its top and bottom to admit theblacking, the purpose of the strainer being to prevent the admission tothe pipe 60 of foreign matter or fluid of such thickness as would tendto clog the supply passages. 4As previously explained, the conduit 48which supports the pipe 60 and the strainer 92, is mounted to turn in avertical plane upon the bearing 46, which permits the pipe and thestrainer to be raised above the blacking when the machine is not in use.The conduit 48 carries a spring plunger 94 which isl arranged to enteran opening 96 in the casting 40 to support the conduit, the pipe and thestrainer in operative position, as shown in Fig. 1. Another opening 98is provided in the casting 40, and when the conduit 48 is to be swungupward to withdraw the pi e and the strainer from the blacking t eplunger 94 is'withdrawn Jfrom the opening 96 by pulling upon a knob 100connected with the plunger, and the latter is then caused to enter theopening 98 to support position as indicated by dotted lines in Fig. 1.As thus supported the -pipe 60 and the headJ 66 will be inclined so asto permit the blacking to drain horizontal passage 64 and thus preventthe blacking from drying within and clogging the passage.

In order to prevent excessive pressure in the reservoir l6 and thus toregulate the velocity of the current of air issuing from the nozzle 84,the machine is provided with a relief valve 102 having a rounded lowerend seated over an opening 104 -that coinnii'inicates through the top ofthe conduit 40 with the air passage 42, the valve being mounted .lloosely within a vertical bore ormed in a projection 106 on the conduitand maintained normally by its own weight in position/to close theopening 104. In the Y event of excessive pressure within the reser--voir 6 and the air conduit, the valve 102 is raised and the excess ofair escapes past the valve and through the openings '108.

Whatever may be the consistency of the principal portion of the spraythat issues Jfrom the outlet 68, the spray will be found to contain moreor less vappr comprising very minute particles of blac 'ng which tend tofioat away in the surrounding air and to dry rapidly so as to formparticles in the nature of soot which may be inhaled by the operator. Inorder to protect the operator from this annoyance and possible danger tohealth, the machine is constructed to insure the immediate return to thereceptacle of all the unutilized blacking, including such vapor, and therecovery of substantially all the surplus blacking for subsequent use.To

is provided at its' this end the receptacle 8 top with a downwardlyinclined rim 110 which partially closes the receptacle but leaves acentral opening of sufficient width to admit the surplus spray, as wellas to permit the pipe 60 and the strainer 92 to be raised from thereceptacle through the swinging of the conduit 48. The outlet conduit 16previously referred to opens into the receptacle beneath the rim 110 andabove the surface of the blacking and thus affords an outletcommunicating with the conduit 18 which is in the form of a T with avertically bored head portion 112 at its outer end. Closing the lowerend of the passage in the head 112 is a cap 114 into which aie threadedscrews 116 that are received within slots in the head and serve to clampthe cap in place. Extending through the cap 114 is a pipe 118 providedwith a restricted opening 120 at its upper end, this pipe communicatingwith the air reservoir 6 through a flexible tube 122 and a pipe 124.Secured to the upper end of the head 112 by means of screws 126 is anoutlet pipe 128. With the parts thus constructed and arranged, a jet ofair will be delivered continuously from the opening 120 while themachine is in operation, and this will induce an outward current throughthe conduits 16 and 18 and thence through the pipe 128. The passage ofthe surplus spray through the opening in the top of the receptacle isJfacilitated by the provision of the relief outlet 16, and. in theconstruction illustrated the eect is enhanced by the positive inductionof an inward current of air and spray through the opening in thereceptacle by reason of the arrangement yof the air jet issuing from thevopening 120. lnsurance is thereby aorded that vapor comprising thefiner particles of blacking in the spray will not be dispersed in thesurrounding air but will be. received within the receptacle 8 wheresubstantially all the b lacking will be condensed. The pipe 128 may leadto any desired point, but any vapor-finally issuingfrom this pipe willbe so small in quantity as to be negligible.l rlhe arrangement of slotsin the head 112 permits the pipe 128-to be secured, if found .moreconvenient, to the lower end of the head and the cap 114 in the u perend, a exibleconnection 122 of suita le length for this purpose beingprovided.

In the operation of the machine theair pump, it will be. understood, isdriven continuously to maintain the requisite pressure inthe reservoir6, and the maximum pressure is limited by the relief valve 102. Jets ofair are thus delivered. continuously from the outlets 84 and 120,'thejet issuing from the'nozzle 84 creating suction to cause blacksole orlike article to the margin of which y outlet 68 ator. The surplusblacking in the spray is ing, in combination,

blacking is to be applied is resented with its edge in contact with thepipe 60 at a distance from the outlet indicated by the gage 86 and ismoved to draw its margin throu h the spray, the pipe 60 having beenprevious y adjusted by turning the member 69 Within the opening in theconduit 48 so as to position the pipe in the proper relation to the tosuit the convenience of the operreturned to the receptacle 8 through theopening in its top, such return being facilitated by the inward currentat thelopening induced by the operation of the air jet 120.

When it is desired to stop the operation of the machine, the belt istransferred by means of the belt shifter 36 to the loose pulley 34 andthe pump then ceases to force air into the reservoir 6. The plunger 94may then be withdrawn from the opening 96 and the conduit 48 swungupward to raise the pipe 60 and the strainer 92 from the blacking, theplunger 94 then engaging 1n the opening 98'to support the parts inupraised position and permit the blacking to drain from the passages 62and 64.

It will be apparent that there -is nothing in the.construction shown anddescribed to restrict the machine to the use of Huid of any particularcharacter, stood that the term blacking, as used herein is notrestrictive but is to be given a broad interpretation consistent withapplicants intention to claim all the protection to 4which he visentitled for the various novel features of the invention. i

Having described the invention, what I claim as new and desire to secureby Letters Patent of the United States is: H

l. A machine lof the class described having, in combination, means fordelivering' blacking in the form of spray, and means for Variablydetermining the relative position of.

the margin of a `shoe sole with respect to theV diverging path of saidspray, the last mentioned means operating also -to cause the blackingtobe applied along a predetermined portion of the margin of the sole.

2. A machine of theV class described havblacking in the form of spray,and a work guide having a uniform surface extending 1n the generaldirection of the path of the plied alongthe margin of the sole.

and it should be under! Ablacking in the form means for delivering sprayto aid the operator in applying blacking to a definite portion of thework as the work is moved in contactA with the guide at any desireddistance from the point of delivery of the spray.

A machine of the class described having, in combination, means fordelivering blacking in the form lof spray, and a member extending intothe path of the spray and arranged to act as a guide for the edge of ashoe sole as the sole is moved lengthwise of said edge to cause theblacking to be ap- 4. A machine of the class described having, incombination, means for delivering blacking in the form of spray, andmeans arranged in a definite relation to the line of delivery of saidspray,-said means being constructed to provide a plurality of guidingsurfaces varlably distant from the point of delivery of the sprayadapted for association with the work to thereby determine the relationof the work with regard to the point of delivery and the line ofdelivery of the spray.

5. A'machine of the class described having, in combination, means fordelivering blacking in the form of spra and a work .guide extendinglongitudinally of the path of the spray to permit the work to bepositioned in the path of the spray at different distances from 'thepoint of delivery.

6. A machine of the class described having, in combination, means fordelivering blacking in the form of spray, and a work guide extendingsubstantially parallel to the line of delivery of the spray and arrangedto engage the edge of a shoe sole to position the margin of the sole inthe path of the spray', said guide being formed to permit the sole to bepresented at different distances from the point of delivery of thespray.

7. A machine of the class described having, in combination, means fordelivering blacking in the form of spray, and adjustable means forvariably determining the distance from the point of delivery of thespray at which work shall vbe presented in the path of the spray. 8.Amachine of the classv described having, in combination, means fordelivering of spray, a work guide extending longitudinally of the pathof the spray, and means havinga face for determining the positionlongitudinally of the guide in which the work is to be presented incontact with the guide.

9. A machine of the class described having,l in combination, means fordelivering blacking in the form of spray, a work guide extendinglongitudinally of the path of the spray, and a member having a gagesurface adjustable longitudinally ofthe guide for determining theposition in which-the work is to be presented in contact with the guide.

10. A machine of the class described having, in combination, means fordelivering blacking in the form of spray, means for engaging the edge ofa shoe sole to determine the position of the sole With reference to theline of delivery of the spray, and means having a face for engaging theface of the sole to determine the distance of the sole from l side ofsaid delivery means for engaging the edge of the work to cause themargin of the Work to be positioned in the path of the spray, and meansat the other side of said delivery means for 'engaging the face of theWork having a surface arranged to limit the Width of the blacked margin.

13. A machine of the class described having, in combination, means fordelivering blacking in the form of spray, and means at one side of thepath of said spray having a surface for confining the spray to themarginal portion of the Work.

14. A machine of the class described having, in combination, means fordelivering blacking in the form of spr'ay, a Work guide extendinglongitudinally of the path of said spray at one side of the line ofdelivery of the spray, and a shield extending longitudinally of saidpath at the other side of said .line of delivery.

15. A machine of the class described having, in combination, means. fordelivering blacking in the form of spray, a Work guide extendinglongitudinally of the path of said spray at one side of the line ofdelivery of the spray, and means at the other side of said line ofdelivery for determining the distance from the point'ot1 delivery atwhich the Work is to be presented in the path of the spray, said lastnamed means being constructed and arranged also to shield portions ofthe Work from the spray.

16. A machine of the class described, having, in combination, a support,means carried thereby for delivering blacking in the form of spray, anda Work guide positioned with reference to said ldelivery means to causethe blacking to be applied to a portion Y of the Work presented incontact With the guide, said guide and spray delivery means beingadjustable relatively to one another and to the support to permit theguide to be positioned in different directions from the lineof deliveryof the spray.

17. A machine of the class described hav,- ing, in combination, asupport, means carried thereby for delivering blacking in the form ofspray, and a Work guide for determining the position of Work in thepathof the spray, said guide being adjustable angularly about the line of.delivery of the spray.

18. A machine of the class described having, in combination, a support,means carried thereby for delivering blackin in the form of spray, and aWork guide etvveen the point of delivery of the spray and the support,said guide being adjustable laterally with reference to a vertical planeextending rearwardly through said delivery point and the support.

19. A machine of the class described h aving, in combination, means fordelivering blacking in the form of spray, and a Work guide extendinglongitudinally of the path of the spray, said guide being adjustableabout an axis substantially coincident with the line of delivery of thespray.

20. A machine of the class described having, in combination, means fordelivering blacking in the form of spray, a guide at one side of theline of delivery of the spray for deterinining-the position of themargin of the Work in the path of the spray, and a shield at the otherside ofsaid line-of delivery for protecting other portions of the Workfrom contact with the spray, said guide and shield being adjustableabout the, line of delivery of the spray without altering their relationt0 each other.

21. A machine of the class described having, in combination, an airsupply conduit, air delivery means mounted on said conduit, and meansfor conductin blacking into the path of the air delivered rom said meansto cause the blacking to be atomized by the air, comprising a pipedepending from said air delivery means in offset relation to the line ofthe air current, said pipe being arranged to serve as a Work guide, andthe air delivery means being arranged for turning movement to adjustsaid guide Without interrupting communication between said means an theair conduit. v

22. A machine of the class described having, in combination, areceptacle provided With an opening, and means external of thereceptacle for delivering blacking in such manner as to cause theunutilized ortion of the blacking to enter the receptac e through saidopening, said delivery means being so constructed and arranged'relatively to the receptacle as to position Work to Which blacking isto be applied between said meansV and the receptacle.

A machine of the class described having, in combination, a receptacleprovided with an opening, means for drawing blacking fromsaid'receptacle and discharging it over said opening to permit theunutilized portion of the blacking to be returned to the pointsuiciently removed from receptacle, and means connected to said firstmentioned means for determining the pos1- tion .of work to whichblacking is to be applied to cause said work to receivea yportion of1the blacking discharged tac e.

over the recep- 24. A machine of the class described having, incombination, a receptacle for blacking, means for drawing blacking fromSaid receptacle, spraying said blacking and returning the unutilizedportion of the blacking to the receptacle, and relatively fixed guidingmeans for determining the position of work to which blacking is to beapplied as it is'moved through said spray past said guidin neans.

25. machine of the class described having, in combination, a receptaclefor blacking, a pipe extending upward from said receptacle, and meansfor drawing blacking upward in sai'd'pipe and returning it downwardoutside of the pipe in the form of spray, the pipe being arranged toserve as a guide for work presented in the path of said spray.

26. A machine of the class described having, in combination, a blackingreceptacle, a blacking supply conduit extending upward from saidreceptacle and having a horizontally extending portion at its upper end,said horizontal portion of the conduit havmg an Vopemnginits lower side,and means for directing a Jet of air through said opening to cause theblacking to be sprayed in the direction of the receptacle. o 27. Amachine of the class described having,1n comblnation, a receptacle forblackmg provided with an open top, Aan air conduit extending over thetop edge of said receptacle, a blacking suppl conduit extendingnpwardfrom the rgbeptacle to a the top edge thereof to allow the introductionof work between said conduit and the top edge of the receptacle, andmeans for dellvering a jet of air from the air conduit, said airdelivery meansbeing arranged with reference to the blacking supplyconduit to cause the blacking to be dlrected in the form of spray towardthe receptacle. l

28. A machlne of the class described having, in combination, an openreceptacle for blacking, an air conduit extending over'said receptacle,a blacking ranged to be supported and to dip into the blacking in thereceptacle,

and means for delivermg a jet-of air from the air conduit in position.to atomizethe" blacking, said air conduit being movable to withdraw theblacking supply conduit from the receptacle.

29. A machine of the class described having, in combination, an openreceptacle for blacking, an air conduit extending over said said conduitbeing supply conduit arby sald air conduit.`

receptacle, a blacking ranged to be supported and to dip into theblacking in the receptacle, said blacking conduit having a horizontallyextending portion at its upper end, and means for deliveringa jetof airtransversely of said horizontal portion of the conduit to atomize theblacking, said air conduit being mounted to swing upwardly to aninclined position so as to permit the blacking to drain from saidhorizontal por'- tion of the blacking conduit when the machine is not inuse.

30. A machine of the class described having, in combination, a blackingreceptacle, a compressed air reservoir, an air conduit communicatingwith the air reservoir and extending over the blacking receptacle, and ablacking supply conduit supported by the air conduit, said air conduitbeing movable to cause the blacking supply conduit to dip into theblacking in the receptacle or to be withdrawn from the blacking withoutinterrupting the communication between the air conduit and the airreservoir.

31. A machine of the class described hav-- ing, in combination, meansfor delivering a jet of air, means for conducting blacking into the pathof said air jet to cause the blacking to be delivered in the form ofspray, said air delivery means and blacking supply conduit arvconductingmeans belng relatively adjustable longitudinally of the path of theairjet to vary the size of the particles of blacking in the spray, andmeans ad]ustably toposition the work in accordance with the variation inthe s ray.

32. A mac ine of the class described having, in combination, a blackingsupply conduit'formed with a lateral delivery opening, and an airdelivery nozzle arranged to direct a jet of air outwardly through saidopenmg, constructed and arranged to serve as a gulde for workpresentedln line with said opening.

33. A machine of the class described having, in combination, a blackingreceptacle formed with an opening, and means for ydelivering a spray ofblacking in the dlrection of 4said opening, the receptacle beingprovided with a relief outlet above the body of the blacking tofacilitate the passage of the spray through said opening.

34. A machineof the class described having, in combination, a blackingreceptacle .formed with an opening in its top, and

means fo'r delivering a spray of blacking downwardly toward saidopening, the receptacle being provided with a lateral relief loutletabove the body of the blacking to by said air conduit receptacle,

vide a restricted opening-in the top of said 'and means for deliverin aspray of blacking toward said openin t e receptacle having a lateralrelief outil-et from below said rim to facilitate the passage of thespray through said opening.

36. A' machine of the class vdescribed having, in combination, ablacking receptacle formed with an opening, means for delivering a sprayof blacking toward said opening, and add'tional means for creating aninward current .through said opening to facilitate the passage of the.spray through theopening.

37. A ing, in combination, formed with an opening in its top and with anoutlet above the body of the blacking, means for delivering a spray ofblacking toward said opening, a conduit communicating with said outlet,and means for creating an outward current in said conduit to facilitatemachine of the class described havthe passage of the spray through saidvopening.

38. A machine of the class described having, in combination, a blackingreceptacle formed with an opening in its top and with an outlet abovethe body of the blacking,

means for delivering a spray of blacking to,

ward said opening, a conduit communicating with said outlet, and meansfor delivering a jet of air into said conduitto induce an outwardcurrent throu h said outlet.

39. A machine 0F the class described having, in combination, a blackingreceptacle formed with an opening in its to and with an outlet above thebody of the Elacking, a compressed air reservoir, means for utilizingair from said reservoir to draw blacking from the receptacle and deliverit in the form of aspray toward said opening, a conduit communicatingwith the outlet from said receptacle, and means for delivering a jet oair from the air reservoir into said conduit to induce an outwardcurrent through said outlet.

40. lin a machine of the class described, mechanism for delivering-blacking in the form of spray, an d means for positionin the workrelatively to said mechanism, sai means operating also to limit thefield of operation of the spraying mechanism by confining the spray to aredetermined marginal ortion of the wor c.

41 ln a machine of the class described, mechanism for delivering blackmg1n the form ofspray, and means for determining adjustably the distanceof `the Work'from the point of delivery of the spray, said mechanismandmeans being constructed and arranged to limit the application of blackmgto a marginal portion of the work.

a blacking receptacle 42. In `a machine in which the work 'is presentedby -hand to relatively stationary mechanism for delivering blacking inthe form of spray, the combination with said mechanism of means forenabling an operative to hold and move the work so as to confine thespray to a predetermined marginal portion thereof.

43. In a machine o f the class described, mechanism for deliveringblacking in the form of spray, and a'member operative as a shield toprevent the spray from striking the work beyond a predetermined marginalline, said member operative also as a, gage to determine the distance ofthe work from the point of delivery of the spray.

44. In a machine of the class described designed for the pur ose ofblacking the marginal portion of t e upper surface of a piece of work,the combination with mechanism for delivering blacking in the form ofspray, of gaging means for positioning the Work at the proper distancefrom the point of delivery of the spray and with a predeterminedmarginal portion thereof eX- osed to the spray, and a shield forpreventmg the application of spray beyond said tioning the workconstructed and arranged f .to insure that only a predetermined marginalportion thereof will be sprayed.

47. A machine of the class described having, in combination, means fordelivering blacking in the form of spray, and means at one side of thepath of said spray having a surface for preventing lateral deflection ofthe spray and having another surface for determining the distance of thework from the point of delivery of the spray.

4 8. In a machine in which the work is presented by hand to relativelystationary mechanism for delivering blacking in the form of spray, thecombination with' said mechanism of means to confine the spray to apredetermined marginal Aportion of the work.

lin testimony whereof l have signed my name to this specification.

FREDERlCK M. FURBER.

